Designing a system to synchronize the input signal in a telecommunication network under the condition for reducing a transitional component of the phase error

Authors

DOI:

https://doi.org/10.15587/1729-4061.2021.225514

Keywords:

combined synchronization system, phase error variance, phase error transitional component

Abstract

The quality of reception, as well as the processing and demodulation of the input signal in the telecommunication systems' networks, are closely related to the quality indicators in the functioning of one of the subsystems of these networks, namely a phase synchronization system. This work has directly considered the issues related to improving the performance and reducing the transitional component of the phase error generated by transition processes in the combined synchronization system. A mathematical model has been built that makes it possible to synthesize a disrupted link in the synchronization system of a telecommunication network meeting the condition for a decrease in the transitional component of the phase error. It is shown that a simple disrupted link, synthesized under the condition of suppressing a slow-fading transition component, makes it possible to shorten the time of the transition process in the system while maintaining the initial order of astatism. When a complex link is synthesized, the transition process becomes oscillatory.

It was established that under the conditions of a phase jump or a frequency jump, it is possible to improve the dynamics of the system and reduce the transitional component of the phase error variance by making the parameters for the disrupted communication link influence the roots of the characteristic equation of the transition process. The features in synthesizing disrupted communication have been considered for the intervals of movement corresponding to areas with the positive and negative inclination of the phase discriminator's static characteristic. Such conditions have been devised that make it possible to determine the value and sign of the root in the characteristic equation of the transition process, which is introduced by the parameter of a disrupted communication link separately for areas of the stable and non-steady movement of the phase discriminator's static characteristic. The reported mathematical model of disrupted link synthesis has made it possible to derive reference results. They indicated that in order to suppress the slowly fading component of the phase error characteristic equation to "0", it is necessary to provide for a significant advantage, up to 10 times, of the roots introduced by the disrupted communication link over the roots of the specified component. By changing the value for a disrupted communication parameter, one can significantly, up to 5 times or larger, shorten the time of the transition process in the combined synchronization system at a simultaneous decrease of 18‒25 % in the initial value of the transition error

Author Biographies

Liubov Berkman, State University of Telecommunications

Doctor of Technical Sciences, Professor, Vice-Rector for Scientific and Pedagogical Work

Olga Tkachenko, State University of Telecommunications

Doctor of Technical Sciences, Associate Professor, Head of Department

Department of Computer Engineering

Oleksandr Turovsky, National Aviation University

PhD, Associate Professor

Department of Information Security

Vaceslav Fokin, State University of Telecommunications

Director of Institute

Educational and Scientific Institute of Telecommunications

Vitaliy Strelnikov, State University of Telecommunications

Postgraduate Student

Educational and Scientific Institute of Information Technologies

References

  1. Steklov, V. K., Kostik, B. Ya., Berkman, L. N. (2005). Suchasni systemy upravlinnia v telekomunikatsiyakh. Kyiv: Tekhnika, 400.
  2. Berkman, L., Barabash, O., Tkachenko, O., Musienko, A., Laptiev, O., Salanda, I. (2020). The Intelligent Control System for infocommunication networks. International Journal of Emerging Trends in Engineering Research, 8 (5), 1920–1925. doi: https://doi.org/10.30534/ijeter/2020/73852020
  3. Boiko, J., Pyatin, I., Eromenko, O., Barabash, O. (2020). Methodology for Assessing Synchronization Conditions in Telecommunication Devices. Advances in Science, Technology and Engineering Systems Journal, 5 (2), 320–327. doi: https://doi.org/10.25046/aj050242
  4. Boiko, J. M. (2015). Increasing the noise immunity of signal processing units of telecommunications on the basis of the modified synchronization schemes. Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia, 61, 91–107. doi: https://doi.org/10.20535/radap.2015.61.91-107
  5. Turovsky, O. (2020). Estimation of the possibilities of the combined synchronization system with open-link to minimize the dispersion of the phase error when tracking the carrier frequency under the conditions of the influence of additive noise. Technology Audit and Production Reserves, 4 (1 (54)), 16–22. doi: https://doi.org/10.15587/2706-5448.2020.210242
  6. Karpov, Yu. O., Vedmitskyi, Yu. H., Kukharchuk, V. V., Katsyv, S. Sh.; Karpov, Yu. O. (Ed.) (2012). Teoretychni osnovy elektrotekhniky. Perekhidni protsesy v liniynykh kolakh. Syntez liniynykh kil. Elektrychni ta mahnitni neliniyni kola. Vinnytsia: VNTU, 530.
  7. Turovsky, O., Kozlovskyi, V., Balanyuk, Y., Boiko, Y., Lishchynovska, N. (2020). Consideration of limitations, which are formed by the input signal, on the phase error minimization process during carrier frequency tracking system of synchronization of radio technical device of communication. International Journal of Advanced Trends in Computer Science and Engineering, 9 (5), 8922–8928. doi: https://doi.org/10.30534/ijatcse/2020/290952020
  8. Boiko, J. М., Nochka, R. Yu. (2015). Quality evaluation synchronization devices signals of telecommunications. Herald of Khmelnytskyi national university, 1, 144–155.
  9. Scheers, B., Nir, V. L. (2010). A Modified Direct-Sequence Spread Spectrum Modulation Scheme for Burst Transmissions. Military Communications and Information Systems Conference (MCC’2010), Wroclaw, 366–373.
  10. Shahtarin, B. I. (2016). Analiz sistem sinhronizatsii pri nalichii pomeh. Moscow: Goryachaya liniya – Telekom, 360.
  11. Kay, S. (1989). A fast and accurate single frequency estimator. IEEE Transactions on Acoustics, Speech, and Signal Processing, 37 (12), 1987–1990. doi: https://doi.org/10.1109/29.45547
  12. Tikhomirov, A. V., Omeluanchuk, E. V., Semenova, A. Y., Smirnov, A. A. (2019). Synchronization in direct sequence spread spectrum systems. Engineering journal of Don, 9 (60).
  13. Le Nir, V., Van Waterschoot, T., Moonen, M., Duplicy, J. (2009). Blind CP-OFDM and ZP-OFDM Parameter Estimation in Frequency Selective Channels. EURASIP Journal on Wireless Communications and Networking, 315765. doi: https://doi.org/10.1155/2009/315765
  14. Zelenkov, A. A. (2009). Transient analysis of electric power circuits by the classical method in the examples. Kyiv: NAU, 154.
  15. Sklar, B. (2017). Digital Communications: Fundamentals and Applications. Prentice Hall, 1104.
  16. Horowitz, P., Hill, W. (2015). The Art of Electronics. Cambridge: Cambridge University Press, 1220.
  17. Bessonov, L. A. (2016). Teoreticheskie osnovy elektrotehniki. Elektricheskie tsepi. Moscow: Yurayt, 701.

Downloads

Published

2021-02-27

How to Cite

Berkman, L., Tkachenko, O., Turovsky, O., Fokin, V., & Strelnikov, V. (2021). Designing a system to synchronize the input signal in a telecommunication network under the condition for reducing a transitional component of the phase error . Eastern-European Journal of Enterprise Technologies, 1(9 (109), 66–76. https://doi.org/10.15587/1729-4061.2021.225514

Issue

Vol. 1 No. 9 (109) (2021): Information and controlling system

Section

Information and controlling system

License

Copyright (c) 2021 Liubov Berkman, Olga Tkachenko, Oleksandr Turovsky, Vaceslav Fokin, Vitaliy Strelnikov

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

The consolidation and conditions for the transfer of copyright (identification of authorship) is carried out in the License Agreement. In particular, the authors reserve the right to the authorship of their manuscript and transfer the first publication of this work to the journal under the terms of the Creative Commons CC BY license. At the same time, they have the right to conclude on their own additional agreements concerning the non-exclusive distribution of the work in the form in which it was published by this journal, but provided that the link to the first publication of the article in this journal is preserved.

A license agreement is a document in which the author warrants that he/she owns all copyright for the work (manuscript, article, etc.).
The authors, signing the License Agreement with TECHNOLOGY CENTER PC, have all rights to the further use of their work, provided that they link to our edition in which the work was published.
According to the terms of the License Agreement, the Publisher TECHNOLOGY CENTER PC does not take away your copyrights and receives permission from the authors to use and dissemination of the publication through the world's scientific resources (own electronic resources, scientometric databases, repositories, libraries, etc.).
In the absence of a signed License Agreement or in the absence of this agreement of identifiers allowing to identify the identity of the author, the editors have no right to work with the manuscript.
It is important to remember that there is another type of agreement between authors and publishers – when copyright is transferred from the authors to the publisher. In this case, the authors lose ownership of their work and may not use it in any way.